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Old 05-13-2005, 11:03 PM
Magot Magot is offline
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Join Date: May 2005
Location: Thurmont, MD
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Horse Power

I was wondering how to get the most horse power out of my twin cylinder 18 hp briggs and stration motor. I need to get as much as I can out of it. Thanks.

By the way. I figured out the wireing. thanks alot
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Old 05-13-2005, 11:06 PM
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TURF DOCTOR TURF DOCTOR is offline
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Crank the rpm up to 4000
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Old 05-14-2005, 01:27 AM
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Smalltimer1 Smalltimer1 is offline
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Location: Raleigh, NC area
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Quote:
Originally Posted by Turf Docter
Crank the rpm up to 4000
Those engines are designed to only withstand 10% above their max RPM momentarily any more than that or longer than that, then he'll have a rod sticking out the side. Since most newer Briggs are governed at 3600, he'd only be able to run 3960 RPM just for a few seconds, even with such a small difference, he could still blow it.

The best thing you can do is to bore out the venturi in the carb about an 1/8" and that will increase your flow of air/fuel in and then see if you can get the heads ported and polished as well as running a hotter spark plug. Just make sure you don't get one that will scorch the pistons.
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